Just to confirm, does the red track came from the GH-625XT? If so, was the device able to get a good GPS fix from the beginning?What is the testing environment? Are you outside with a clear access to an open sky, with no tall trees or buildings around?Also, make sure that the GPS function is enabled. You can do this by going to Main Menu > Configuration > GPS and select on.

Another thing, what is the firmware version of the watch?

P.S.Yes, you can set the 'WAAS/EGNOS' function to 'ON' in order to get more accuracy.

Hi, thanks for your welcome Yes the red track comes from the GH-625XT with Version 2.02 on it. No trees, very open sky, outside, GPS is available (no blinking the sattelite symbol on the watch), no big buildings. In the SAME time, the track with my smartphone works very exactly.

What I do is following: In the house, before I go outside I switch the GH-625XT on. Then I get the messages something like: "Search for Sattelite" Then a progressing bar comes. After finding I go outside and start the tracking. I tried to start tracking, if I standing at one place. I tried it, if I move some steps. In most of the tracks the beginning is wrong. The rest is very fine.

I think the reason can not be the weather or something like that, because my smartphone tracks it correct, also in/after tunnels. After tunnels the watch have problems too, but not my smartphone.

But I need it very exactly for my business... Can your technicians fix the problem?

Can you please confirm the firmware version of the watch? You can do this by going to Main Menu > Configuration > About Product. The firmware version should be indicated in the last line. The latest one that we have is F-GGH-2P-1201201.

Before you started tracking, did you make sure the watch was able to get a good GPS fix? Was the GPS icon solid?

By the way, have you tried performing Factory Reset? You can do this by going to Main Menu > Configuration > Factory Reset. Try recording a track again and see if that resolve your issue.

Also, can you please register your product and generate a support ticket within our system? Please check your email for further instructions.

What likely happens here is that the accuracy is low at the start. The position is therefore inaccurate. The accuracy increases over time.

From what I see later on the track, the red track is following the road better, so the 625XT is likely a better GPS receiver. The phone uses the mobile network to get a quicker fix. The 625XT is a little slower. It is technically possible to "presync" fitness devices over USB prior to the start, but this feature does not seem to be implemented (I do not know any fitness watches where it exists). In your case, it is possible that you get 4 sats, then immediately starts but some of the sats may not be visible any more and the accuracy is lower.To see number of sats when starting, press arrow-up (or go to GPS Info menu). If you care about accuracy, do not start with less than 8 sats. (I really miss a Sat Accuracy field, to monitor this when speed/pace seem off.)

This is normally not an issue for me. I normally tie my shoes and make final preparations outside in open areas. When I am done the sats are synced.